
CoStar Files Amicus Brief Opposing Zillow’s Injunction in MRED Case
CoStar filed an amicus brief opposing Zillow’s injunction motion in the MRED case, arguing Zillow Preview contradicts Zillow’s own legal position.

CoStar filed an amicus brief opposing Zillow’s injunction motion in the MRED case, arguing Zillow Preview contradicts Zillow’s own legal position.

Midwest real estate data provider MRED has cut off Zillow’s access to roughly 43,000 listings across Illinois and surrounding states, escalating a legal fight with Compass over private listing practices.

Zillow analyzed 15 million transactions and found dual agency and off-MLS listings cost home sellers a combined $2.85 billion over three years.

Zillow filed a federal antitrust lawsuit alleging MRED and Compass conspired to cut off listing data access and force Zillow to promote private listings nationwide.

Midwest Real Estate Data (MRED) expands its Private Listing Network nationwide as Compass feeds listings and subsidizes access for the first 100K Compass agents.

Byron Lazine and Nicole White break down the Cotality–ResiClub survey, where 90% of agents say they’re staying despite a 40-year low in existing-home sales.

Compass announced it will share its 6,000 private exclusive listings with brokerages and MLSs, but only if they agree not to alter, monetize, or penalize agents for sharing them. The move comes amid ongoing legal battles with Zillow and industry pushback over listing access and transparency.

Compass filed a federal lawsuit against Zillow on Monday, accusing the portal of anticompetitive practices over its ban on private listings.

In a new announcement, Realtor.com CEO Damian Eales calls out the risks of private listings and reaffirms full support for NAR’s Clear Cooperation Policy. He warns that limiting exposure not only reduces competition but could also lead to legal and ethical fallout for agents and brokers.

CoStar CEO Andy Florance says Homes.com will now offer a free Boost to listings banned by Zillow, offering agents a workaround to the portal’s new private listing ban.

Caitlin O. Bigelow’s April 21 LinkedIn post, “Compass Exclusive Almost Became a $100K Mistake,” is adding fuel to the ongoing debate around Zillow’s new listing standards, after she nearly left six figures on the table.

Zillow’s new policy aims to curb the use of private listing networks by excluding publicly marketed “off-MLS” properties. This move has sparked renewed debate over transparency, competition, and consumer access in real estate.